Month: November 2022

Novel Enzymatic Potentiometric Approaches for Surfactant Analysis was written by Khaled, Elmorsy;Hassan, Hassan N. A.;Abdelaziz, Mona A.;El-Attar, Rehab O.. And the article was included in Electroanalysis in 2017.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

The present study described a novel application of simple potentiometric enzymic method for anal. of surfactants based on their inhibitory effect on acetylcholinesterase enzyme (AChE). The enzymic activity was measured through monitoring hydrolysis of acetylcholine (ACh) with a disposable acetylcholine potentiometric sensor. Comprehensive investigations were carried out including the effect of incubation time, cholinesterase enzyme and the working calibration ranges. Based on inhibition of AChE, different cationic, anionic and nonionic surfactants were determined in the concentration range from 0 to 40 μg mL^-1 with detection limits reaching 0.07 μg mL^-1 depending on the nature of surfactants. The degree of AChE inhibition caused by different tested surfactants were as follows: cetylpyridinium chloride (CPC)>benzyldimethylhexadecyl ammonium chloride (BDHAC)>Hyamine (Hy)>cetyltrimethylammonium bromide (CTAB)>Triton X-100 (TX-100)>sodium dodecyl sulfate (SDS). The proposed method was applied for determination of surfactants in pharmaceutical formulation, detergents products and environmental samples with acceptable sensitivity and reproducibility. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Category: chlorides-buliding-blocks).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Category: chlorides-buliding-blocks

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

A urea-modified tryptophan based in situ reducing and stabilizing agent for the fabrication of gold nanoparticles as a Suzuki-Miyaura cross-coupling catalyst in water was written by Sasmal, Supriya;Debnath, Mintu;Nandi, Sujay Kumar;Haldar, Debasish. And the article was included in Nanoscale Advances in 2019.Electric Literature of C6H5ClO2 The following contents are mentioned in the article:

Urea-modified tryptophan has been used as an in situ reducing and stabilizing agent for the fabrication of gold nanoparticles in water. The tryptophan side chain NH has been used for the reduction of gold ions in HAuCl₄ to metallic gold and carboxylic acid functionality helps to stabilize the gold nanoparticles. This was confirmed by a controlled reaction with urea-modified leucine which failed to form any gold nanoparticles. The resultant gold nanoparticles have been characterized by various spectroscopic techniques such as UV-visible spectroscopy, FT-IR spectroscopy and microscopic techniques such as FE-SEM and TEM. Moreover, we have shown that the urea-modified tryptophan stabilized gold nanoparticles catalyze the Suzuki-Miyaura cross-coupling reaction. The gold nanoparticle catalyzed Suzuki-Miyaura cross-coupling reaction between 4-bromobenzoic acid and phenylboronic acid in water provides 92% yield in 40 min. The high efficiency exhibited by the gold nanoparticle catalyst was effectively translated to a large number of Suzuki-Miyaura reactions between halides with phenylboronic acid. The results may inspire further research on gold nanoparticles catalysis in water. This study involved multiple reactions and reactants, such as 4-Chlororesorcinol (cas: 95-88-5Electric Literature of C6H5ClO2).

4-Chlororesorcinol (cas: 95-88-5) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.Electric Literature of C6H5ClO2

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Ionic conductive hydroxypropyl methyl cellulose reinforced hydrogels with extreme stretchability, self-adhesion and anti-freezing ability for highly sensitive skin-like sensors was written by Qin, Zhihui;Liu, Shide;Bai, Jiahui;Yin, Juanjuan;Li, Na;Jiao, Tifeng. And the article was included in International Journal of Biological Macromolecules in 2022.Recommanded Product: Lithium chloride The following contents are mentioned in the article:

Ionically-conductive hydrogels are attracting increasing interest as skin-like sensors, however, the fabrication of ion-conductive hydrogels with excellent mech. properties, high conductivity, self-adhesion and anti-freezing ability for high-performance sensors remains a challenge. Herein, a highly ion-conductive hydrogel is prepared by introducing LiCl into polyacrylamide/hydroxypropyl Me cellulose (PAM/HPMC) composite hydrogel. The introduction of LiCl simultaneously endows the PAM/HPMC/LiCl hydrogel with outstanding stretchability (1453 %), high tensile strength (135 kPa), skin-like elasticity (9.18 kPa), high conductivity (7.85 S/m), good adhesiveness and wide operating temperature range. Impressively, this ion-conductive hydrogel can be utilized in skin-like sensor, which achieves high strain sensitivity (GF = 11.19) with wide sensing ranges (up to 600 %), and excellent endurance over 250 consecutive stretching. As a result, the wearable sensor assembled from the hydrogels can be used to detect complex human activities with high stability even at -40 °C. This work promotes the development of ion-conductive hydrogels with broad operating temperature in advanced sensory platform. This study involved multiple reactions and reactants, such as Lithium chloride (cas: 7447-41-8Recommanded Product: Lithium chloride).

Lithium chloride (cas: 7447-41-8) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Recommanded Product: Lithium chloride

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Stereospecific Synthesis of (Z,Z)-Isobenzofurans via Radical-Enabled Cleavage of C(sp³)-C(sp³) and C(sp²)-Halogen Bonds was written by Huang, Min-Hua;Shi, Hao-Nan;Zhu, Chi-Fan;He, Chun-Lan;Hao, Wen-Juan;Tu, Shu-Jiang;Jiang, Bo. And the article was included in Advanced Synthesis & Catalysis in 2019.Related Products of 1186603-47-3 The following contents are mentioned in the article:

A novel radical-induced annulation/1,8-halosulfonylation of β-alkynyl ketones I (X = CH; R¹ = Ph, 3-ClC₆H₄, 4-EtC₆H₄, etc.; R² = H, 5-F, 4-Cl, 5-Cl, 5-MeO) and I (X = N; R¹ = 4-ClC₆H₄; R² = H) with haloaryl diazonium tetrafluoroborates X¹C₆H₄N₂⁺BF₄^– (X¹ = 4-Cl, 4-Br, etc.) and DABCO·bis(sulfur dioxide) was first achieved via the cleavage/recombination of C(sp³)-C(sp³) and C(sp²)-halogen bonds, from which 47 examples of sulfone-containing 1,3-dimethylene-substituted (Z,Z)-isobenzofurans II as single stereoisomers were synthesized in generally good yields. This multicomponent pathway is proposed to proceed through the in-situ generation of arylsulfonyl radicals, followed by selective radical addition-cyclization and ring-opening of the cyclopropyl unit as well as C(sp²)-halogen bond cleavage, resulting in the consecutive construction of three new chem. bonds, including C-S, C-O and C-halogen bonds. This study involved multiple reactions and reactants, such as 5-Chloro-2-(phenylethynyl)benzaldehyde (cas: 1186603-47-3Related Products of 1186603-47-3).

5-Chloro-2-(phenylethynyl)benzaldehyde (cas: 1186603-47-3) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Related Products of 1186603-47-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Influence of side chain monomers on the synthesis and properties of piperazine based triazine charring agent was written by Zhang, Qi;Qiu, Yanyan;Zhou, Fulong;Liu, Junhong;Tang, Linsheng. And the article was included in Gaofenzi Cailiao Kexue Yu Gongcheng in 2020.Name: 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine The following contents are mentioned in the article:

The influence of side chain monomers on the synthesis and properties of piperazine based triazine charring agent was studied. The results show that side chain monomers have a great influence on the synthesis of the charring agent. The stronger the hydrophilicity of side chain monomers is, the more the water-solubility of the charring agent is and the lower the yield is. The weak nucleophilicity of aromatic amines results in higher chlorine content and lower yield of charring agents. Side chain monomers also have significant effects on the thermal stability and flame retardancy of the charring agents. The charring agent with ethanolamine has the best thermal stability, followed by the charring agent with morpholine or aniline, butylamine, diethanolamine and ammonia; the more hydroxyl groups the side chain monomers have, the better the flame retardant effect of the corresponding charring agent is. The side chain monomers without hydroxyl groups result in the poor flame retardant effect of the corresponding charring agent, and the charring agent with ammonia has the worst flame retardant effect. The side chain monomers have little effect on the mech. properties of the flame retardant PP. This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4Name: 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine).

4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Name: 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Dihydropyrimidinone imidazoles as unique structural antibacterial agents for drug-resistant gram-negative pathogens was written by Yang, Xi;Sun, Hang;Maddili, Swetha Kameswari;Li, Shuo;Yang, Ren-Guo;Zhou, Cheng-He. And the article was included in European Journal of Medicinal Chemistry in 2022.Computed Properties of C6H9ClO3 The following contents are mentioned in the article:

The health crisis caused by severe multidrug resistance increasingly compels the exploitation of new alternative antibacterial drugs. A library of structurally unique dihydropyrimidinone imidazoles as novel potential antibacterial agents was developed with the aim to confront drug resistance. Some target compounds exhibited strong antibacterial activities, especially, sulfamethoxazole hybridized dihydropyrimidinone imidazole 8b was found to be extremely active against multidrug-resistant K. pneumonia and A. baumanii at a low concentration of 0.5 μg/mL, which outperformed norfloxacin even clinafloxacin. This active compound not only exhibited low cytotoxicity to mammalian cells (human red blood cells, HepG2 and ECs), but also possessed rapid bactericidal property, good biofilm inhibition ability, and a low propensity to induce K. pneumonia and A. baumanii resistance. Further studies revealed that the inhibitory effect of the active compound 8b might be achieved by disrupting membrane integrity, increasing ROS generation, reducing GSH activity and interacting with DNA. These findings provided a bright hope for developing dihydropyrimidinone imidazoles to combat emergent drug resistance. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Computed Properties of C6H9ClO3).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Computed Properties of C6H9ClO3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Simultaneous Successive Twinning Captured by Atomic Electron Tomography was written by Pelz, Philipp M.;Groschner, Catherine;Bruefach, Alexandra;Satariano, Adam;Ophus, Colin;Scott, Mary C.. And the article was included in ACS Nano in 2022.Category: chlorides-buliding-blocks The following contents are mentioned in the article:

Shape-controlled synthesis of multiply twinned nanostructures is heavily emphasized in nanoscience, in large part due to the desire to control the size, shape, and terminating facets of metal nanoparticles for applications in catalysis. Direct control of the size and shape of solution-grown nanoparticles relies on an understanding of how synthetic parameters alter nanoparticle structures during synthesis. However, while outcome populations can be effectively studied with standard electron microscopy methods, transient structures that appear during some synthetic routes are difficult to study using conventional high resolution imaging methods due to the high complexity of the 3D nanostructures. Here, we have studied the prevalence of transient structures during growth of multiply twinned particles and employed at. electron tomog. to reveal the at.-scale three-dimensional structure of a Pd nanoparticle undergoing a shape transition. By identifying over 20 000 atoms within the structure and classifying them according to their local crystallog. environment, we observe a multiply twinned structure consistent with a simultaneous successive twinning from a decahedral to icosahedral structure. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Category: chlorides-buliding-blocks).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Category: chlorides-buliding-blocks

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

The surfactant-ionic liquid bi-functionalization of chitosan beads for their adsorption performance improvement toward Tartrazine was written by Ranjbari, Sara;Ayati, Ali;Tanhaei, Bahareh;Al-Othman, Amani;Karimi, Fatemeh. And the article was included in Environmental Research in 2022.Electric Literature of C25H54ClN The following contents are mentioned in the article:

In this study, the ionic liquid (Aliquat-336) and anionic surfactant (cetyltrimethylammonium bromide, CTAB) bi-functionalized chitosan beads were prepared and characterised using different techniques, including FTIR, XRD, SEM, EDS and BET surface area anal. The characteristic anal. confirmed the successful conjugation of chitosan beads with both surfactant and ionic liquid The novel fabricated beads (CS-CTAB-AL) were efficiently employed, as a high-performance adsorbent, for the removal of Tartrazine (TZ), an anionic food dye, from polluted water. The optimum adsorption of TZ onto the CS-CTAB-AL was found at 2 g L-1 of adsorbent in the wide pH range of 4-11, whereas just 45 min was required to reach more than 90% adsorption efficiency in the studied conditions. Also, the adsorption and kinetic studies showed that the exptl. data well fitted the pseudo-first-order kinetic model and the Langmuir isotherm model. The maximum adsorption capacity of prepared beads was found to be 45.95 mg g-1 at 45°C. The adsorption properties of enabling CS-CTAB-AL conjugation introduced a new type of adsorbents, exploited the combination of ionic liquid and surfactant capabilities for wastewater treatment. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Electric Literature of C25H54ClN).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Electric Literature of C25H54ClN

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Establishment of a Customizable Fluorescent Probe Platform for the Organelle-Targeted Bioactive Species Detection was written by Qiao, Dan;Li, Landie;Shen, Tangliang;Yang, Jiejie;Chang, Hao;Liang, Xiao;Zhang, Lu;Wang, Qianqian;Liu, Ning;Zhao, Wei;Shang, Luqing. And the article was included in ACS Sensors in 2020.Recommanded Product: 638-07-3 The following contents are mentioned in the article:

A customizable fluorescent probe platform that can be used to detect various bioactive analytes offers significant potential for engineering a wide range of bioprobes with diverse sensing and imaging functions. Here, the authors show a facile and innovative strategy for introducing cis-amino-proline as a carrier scaffold, which is appended with three specific functional groups: a target group, a water-soluble group, and fluorophores with triggers. The potency of the designed strategy could be customized to generate variable multifunctional fluorescent probes for detecting bioactive species of interest, including reactive oxygen species (ROS), reactive nitrogen species (RNS), reactive sulfur species (RSS), ROS/RSS, and even enzymes. The authors designed and synthesized five representative water-soluble and organelle-targeted compounds, PMB, PMN, PMD, PRB, and PME, with emission wavelengths of these fluorescent probes varying from blue to red (465, 480, 535, 550, 565, and 640 nm). This strategy could be exemplified by its application to develop a mitochondria-/lysosome-targeting multifunctional fluorescent probe capable of imaging bioactive species of interest in live cells and nude mice. This study involved multiple reactions and reactants, such as Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3Recommanded Product: 638-07-3).

Ethyl 4-chloro-3-oxobutanoate (cas: 638-07-3) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Recommanded Product: 638-07-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

One-pot aqueous synthesis of two-dimensional porous bimetallic PtPd alloyed nanosheets as highly active and durable electrocatalyst for boosting oxygen reduction and hydrogen evolution was written by Chen, Hong-Yan;Jin, Mi-Xue;Zhang, Lu;Wang, Ai-Jun;Yuan, Junhua;Zhang, Qian-Li;Feng, Jiu-Ju. And the article was included in Journal of Colloid and Interface Science in 2019.Application of 122-18-9 The following contents are mentioned in the article:

Recently, two-dimensional materials have gained increasing research attention due to their large surface area, high phys. and chem. stability, and excellent electrocatalytic performances. Herein, we reported a simple and fast one-pot aqueous method for synthesis of two-dimensional porous bimetallic PtPd alloyed nanosheets (NSs) using benzyldimethylhexadecylammonium chloride (HDBAC) as the capping agent and stabilizer. The formation mechanism involved the oriented attachment and self-assembly. The PtPd NSs exhibited excellent oxygen reduction reaction (ORR) activity with the pos. shift (c.a. 43 mV) of the half-wave potential in 0.1 M KOH solution, clearly outperforming that of com. Pt/C (50 wt%). Moreover, the as-prepared catalyst displayed 2.4 times enlargement in mass activity (MA, 382.10 mA mg^-1) and 3.5 times enhancement in specific activity (SA, 0.95 mA cm^-2) relative to those of Pt/C at 0.80 V. Meanwhile, the as-obtained catalyst demonstrated highly boosted hydrogen evolution reaction (HER) in 0.5 M H₂SO₄ electrolyte, surpassing that of Pt/C. These results reveal the practical applications of the catalyst in energy storage and conversion. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Application of 122-18-9).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Application of 122-18-9

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics